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Introducing thread-safe nxt_random().

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This commit is contained in:
Igor Sysoev
2017-07-10 21:07:12 +03:00
parent dc874cd22e
commit 3bccb7f358
9 changed files with 12 additions and 32 deletions
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7
src/nxt_random.c
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@@ -8,8 +8,6 @@
#include <nxt_main.h>
#if !(NXT_HAVE_ARC4RANDOM)
/*
* The pseudorandom generator based on OpenBSD arc4random. Although it is
* usually stated that arc4random uses RC4 pseudorandom generation algorithm
@@ -56,7 +54,7 @@ nxt_random_stir(nxt_random_t *r)
ssize_t n;
struct timeval tv;
union {
uint32_t value[3];
uint32_t value[4];
u_char bytes[NXT_RANDOM_KEY_SIZE];
} key;
@@ -87,6 +85,7 @@ nxt_random_stir(nxt_random_t *r)
key.value[0] ^= tv.tv_usec;
key.value[1] ^= tv.tv_sec;
key.value[2] ^= nxt_pid;
key.value[3] ^= nxt_thread_tid(NULL);
}
nxt_random_add(r, key.bytes, NXT_RANDOM_KEY_SIZE);
@@ -202,5 +201,3 @@ nxt_random_unit_test(nxt_thread_t *thr)
}
#endif
#endif